SPORES COLORED. SETAE PRESENT. 



reaches a very large size. There is a specimen at Leiden from Java nearly eight feet 

 in circumference and weighing over 20 pounds. 



The large, thick, deeply colored setae-like hyphae that are imbedded in the 

 tissue (Fig. 600) are the most remarkable feature of this plant, but were only re- 

 ferred to vaguely as "cystides volumineuses" in the original accounts, and it is only 

 recently that special attention was drawn to them. I think they are mistermed as 



Fig. 600. 



Section of pore walls of Fomes pachyphloeus 

 (much magnified). 



cystidia in any possible meaning of this elastic word. It is of quite peculiar "struct- 

 ure," but other species, Fomes lamaensis, Polyporus Chaperi, glomeratus, Rickii, 

 and others have similar structure. Some day some bright savant will discover that 

 this structure forms a "new genus." Prof. McGinty proposes for it the name 

 Oxyuris. 



SPECIMENS. Philippines, E. D. Merrill; Mauritius, Chas. O'Connor; Madagascar, Henri. 

 Perrier de la Bathie. 



Compare Elmeri. 



FOMES MELAXODERMUS. Pileus ungulate, with a rough, 

 hard, black crust. Context dark, brown (antique brown). Hyphae 

 of two types, thick seta-like, darker hyphae imbedded in the lighter 

 colored, thinner hyphae of the usual type. Pores minute, concolorous, 

 in many distinct layers, 3-4 mic. thick. Setae rather thick, with 

 thick bases. Spores abundant, globose, pale colored, 4 mic. 



It appears to be rare, and is only known from Java. The only 

 specimens I have seen are the one at Kew and the type in Patouil- 

 lard's herbarium. It is very close to Fomes lamaensis and has same 

 "structure," but differs in its abundant, colored spores. 



FOMES LINTEUS. Pileus applanate, thin (5 mm. thick), 

 with brown, slightly tomentose surface, strongly sulcate, with con- 



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